Roll-turning apparatus.



No. 796,633. PATENTED AUG. s, 1905. e. R. FORD & B. P. ALLEN.

ROLL TURNING APPARATUS.

APPLICATION nun run. 12. 1903.

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No. 796,633. PATENTED AUG. 8, 19056 G. R. FORD & B. P. ALLEN.

ROLL TURNING APPARATUS.

APPLICATION FILED MAR.12,1903.

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GEORGE R. FORD AND BENJAMIN F. ALLEN, OF ST. LOUIS, MISSOURI; SAID ALLEN ASSIGNOR TO SAID FORD.

ROLL-TURNING APPARATUS.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed March 12, 1903. Serial No. 147,444.

To all whom, it may concern.-

Be it known that we, GEORGE R. FORD and BENJAMIN F. ALLEN, citizens of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Roll-TurningApparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

Our invention relates to an apparatus in which a mill-roll to be dressed is rotatably supported and is traversed by a cutter positioned upon a reciprocating carriage that is arranged to be moved to and fro longitudinally of the roll for the purpose of turning or dressing the roll with either a straight, concave, or convex face.

The invention consists in features of nov elty hereinafter fully described, and pointed out in the claim.

Figure I is a top or plan view of our apparatus. Fig. II is an end view looking in the direction of the arrow, Fig. I, with parts shown in section taken on irregular line II II, Fig. I. Fig. III is a transverse vertical section taken on irregular line III III, Fig. I. Fig. IV is a view showing a fragment of the cutter-carriage, partly in elevation and partlyin longitudinal section, and the feed-screw by which said carriage is reciprocated. Fig. V is a view showing one of the slip-collars applied to the inner ends of the ad justing-screws within receiving-slots in the directing-bar.

1 designates the bed of the apparatus, having a rear extension 2, upon which is mounted a standard 3, that receives the journal B of the roll A to be operated upon. The journal B has fitted to it aworrn-wheel 4, that receives a worm (not shown) carried bya shaft 5, driven from a suitablesource of power connection to rotate the roll A. The second journal C of the roll A is journaled in ashiftable tail-stock 6, mounted upon the bed extension 2 and adapted to be moved longitudinally thereof to vary the space between it and the standard 3 to accommodate rolls of varying lengths. The tail-stock is connected 11 designates a standard extending longitudinally of the bed 1 at its front side.

12 is a bed-plate mounted upon the bed 1 between the extension 2, on which the roll to bedoperated upon is supported, and the standar 11.

13 is a ledge extending above the main plane of the bed-plate 12. (See Figs. II and III.)

14 is a directing-bar mounted on the ledge 13. In this directingbar are longitudinal slots 15 and 16, extending vertically through the bar at intervals. The slots 15 receive an chor-bolts 17 which pass through the directing-bar and the forward portion of the bedplate 12 to secure the bar to said bed-plate, as seen in Fig. III. By providing the slots'15 the directing-bar may be shifted longitudinally of the bed-plate, so that its center may occupy a position corresponding to the center of the roll A being operated upon, as is necessary in turning rolls of varying lengths in the apparatus.

18 represents adjustment screws passing through the bed-standard 11 and having their inner ends grooved, as seen at 19, Fig. III, to receive slip-collars 20, (see Figs. III and V1,) by which the adjustment-screws are connected to the directing-bar 14. Upon manipulation of the adjustment-screws 18 the directing-bar and the bed-plate on which it is mounted may be slid to and fro transversely of the apparatus toward and away from the roll to be operated upon. In the inner side of the directing-plate 14 is a longitudinal groove 14, (see Figs. II and III,) the utility of which will be hereinafter explained.

21 is a cutter-carriage positioned upon the bed-plate 12 at the rear of the bed-plate ledge 13 and the directing-bar 14. This carriage is adapted to be reciprocated on the bed-plate 12, being supported for such reciprocation by wheels 22.

23 is a cutter set into the carriage 21 and projecting therefrom in the direction of the roll A to be operated upon. This cutter is confined in a socket in the carriage by a keeper 24, extending thereacross, and it is adjusted through the medium of a wedge 25, inserted at the rear end thereof into a pocket 26, con- .tained by the carriage.

The carriage 21 is reciprocated on the bedplate 12 by means of a feed-screw 27, that engages a screw-threaded lug 28, extending downwardly from the lower side of the carriage. (See Fig. IV.) The outer end of the feed-screw 27 bears a worm-wheel 29,that meshes with a worm 30, carried by a shaft 31, journaled in brackets 32 and 33, projecting from the bed of the apparatus. On the shaft 31 is a bevel-pinion 34, that meshes with a bevel-pinion 35, fixed to a pulley-shaft 36.

37 and 38 are tight pulleys on the shaft 36, intermediate of which is a loose pulley 39.

40 and 41 are belts adapted to operate on the tight pulleys 37 and 38 and either of which is designed to be shifted onto the intermediate loose pulley when the other is in service for the actuation of the feed-screw 27 through the interposed gearing connection.

42 is a shift-rod extending longitudinally of the apparatus and provided with loops 43 and 44, through which the belts 40 and 41 pass and by which they are shifted from one pulley to another upon the reciprocation of said shift-rod.

45 represents adjustable trip-collars mounted on the shift-rod and spaced apart a distance corresponding to the length of the roll-surface to be turned or dressed. These trip-col lars are adapted to be engaged by a tripperarm 46, projecting from the rear side of the cutter-carriage 21, which strikes the collar it approaches in moving across the surface of the roll operated upon and by so doing serves to shift the nod 42 and throw the belt 40 or 41 previously operating on the corresponding tight pulley 37 or 38 onto the intermediate loose pulley and throw the other belt previously on said loose pulley onto its tight pulley. By this means the reciprocation of the cutter-carriage is reversed, and when the tripper-arm 46 strikes the trip-collar at the opposite end of its course the belts are again shifted into their former condition to again reverse the reciprocation of the carriage.

47 represents guide-shoes, the shanks of which are set into the cutter-carriage 21 and the heads of which, preferably of V-shape, are slidably seated in the groove 14, contained by the directing-bar 14. As the cutter-carriage 21 is reciprocated in the manner explained these guide-shoes ride against the directing-bar in their groove and serve to direct the course of travel of the cutter 23 during the reciprocating of its carriage.

We claim as our invention In an apparatus of the character described, the combination with the bed, of a roll-support on the bed, a standard extending longitudinally of the bed, a movable bed-plate mounted on the bed between the roll-support and the standard, a ledge extending above the main plane of the bed-plate, a directing-bar mounted on the ledge, anchor-bolts for securing the directing-bar to the ledge, a plurality of adjusting-screws connecting the directingbar and the ledge, a cutter-carriage positioned on the bed-plate in the rear of the directingbar, wheels for supporting the cutter-carriage on the bed-plate, and a feed-screw engaging with the cutter-carriage.

' GEO. R. FORD.

BENJAMIN F. ALLEN. 1n presence of E. S. KNIGHT, M. P. SMITH. 

